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how to take variable（curvature）into comsol 5.4

Posted 17.09.2019, 08:10 GMT-4 Low-Frequency Electromagnetics, General, Computational Fluid Dynamics (CFD) Version 5.4 1 Reply

晓虎 刘
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I want to calculate the curvature of the raised droplets in the graph. I don't know how to introduce this parameter.（Oval represents droplet）Thank you，every bro.

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1 Reply Last Post 23.09.2019, 10:23 GMT-4
Jeff Hiller COMSOL Employee

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Posted: 5 years ago 23.09.2019, 10:23 GMT-4

Hello,

There is a predefined variable available on edges called curv_spatial. I never remember the names of those types of quantities, but here's the trick: you can find the name of such predefined variables by creating a plot and looking among the expressions available for plotting (Here, by doing a Line plot and looking among the Geometry expressions), see the attached screenshot.

Best regards,

Jeff

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Jeff Hiller
Hello, There is a predefined variable available on edges called curv_spatial. I never remember the names of those types of quantities, but here's the trick: you can find the name of such predefined variables by creating a plot and looking among the expressions available for plotting (Here, by doing a Line plot and looking among the Geometry expressions), see the attached screenshot. Best regards, Jeff

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